China - Slope Indicator

V-Logger Series with Spread-Spectrum Radio (China)
Advantages
Cost-effective: The four and eight
channel options provide plenty of connections for many projects, and even
multiple V-Loggers can be more cost
effective than a single full size, multisensor type logger. The addition of the
radio allows for easier installation and
potentially lower costs, as cables are
not required to be run to a central location for access.
Simple to Use: Learn how to use
your V-Logger in minutes, not hours.
There are no programs to write and no
switches to set.
Increased Accuracy: The V-Logger
Series is now "Best in industry for VW
logging accuracy"1 due to a revolutionary new measuring technique.
V-Logger Series with Radio
Overview of Operations
The V-Logger Series is Slope Indicator’s vibrating wire data logger product
line. The Radio series adds an integral
spread-spectrum radio for wireless
communication and data retrieval. The
4-Channel and 8-Channel versions are
identical in optional capabilities, including:
The V-Logger Series with Radio is simple to use and set up takes only a few
minutes.
Connect the logger to your computer
and use Logger Manager software (a
free download available at
www.slopeindicator.com) to specify a
start time and reading schedule.
On site, connect sensor signal cables
to the logger (you can view readings in
real time if you have a PC with you).
Then close the logger and walk away.
Power options include a single lithium
D-cell battery if you plan on regular site
visits, four D-cell batteries for extended
life or cold weather installations.
To retrieve readings, you will need connect the Hermes Wing base station to
a PC via USB. Using the Logger Manager software, you will connect to the
V-Logger wirelessly and both download data and make changes to the
operation of the V-Logger. Logger
Manager saves readings in a text file,
ready for direct import into your
spreadsheet software.
After importing the file into your datasheet program, you have all the data
needed for processing and plotting
your data in a format that is easy to
comprehend.
• Extended Battery Pack
Application
Used in small and medium sized projects, the V-Logger series collects and
monitors data from Slope Indicator
vibrating wire sensors, including:
• Piezometers
• Crackmeters
• Settlement Cells
• Temperature Sensors
• Strain Gauges
• Total Pressure Cells
G E O T E C H N I C A L
&
S T R U C T U R A L
Reliable: The V-Logger series is rated
for temperatures from -40° to 85°C and
the product is IP 68 Rated. Readings
are stored in secure, non-volatile memory.
Spreadsheet Friendly: The Logger
Manager software retrieves readings
and applies calibration factors, if present, to generate data files that contain
both raw and processed readings.
Thus data can be used immediately in
your spreadsheet software.
Improved Noise Reduction: The proprietary new reading method greatly
reduces, and in some cases eliminates,
outside interference from telecom or
electrical sources. This provides
cleaner, more reliable data for your
project.
Longer Battery Life: The V-Logger
Series uses lithium batteries and a
unique algorithm for maximizing battery life and has the ability to use
almost 100% of the battery’s capacity.
Longer Cable Lengths: The V-Logger
Series has a unique mode of operation
that allows for greatly increased cable
lengths.
1 Claims based on published datasheets. See
www.slopeindicator.com for more information.
I N S T R U M E N T A T I O N
6
W W W . S L O P E I N D I C A T O R . C O M
V-LOGGER W/ RADIO MODELS
V-LOGGER SPECIFICATIONS
HERMES RADIO SPECIFICATIONS
USB interface cable and a sheet metal wrench
(for gland and terminal screw tightening) are
included with the logger. The V-Logger utilizes a
D-cell lithium battery, which can be sourced
locally or purchased with the V-Logger. Please
note that air shipment of the battery domestically is considered a Hazardous Goods shipment
and it may not be possible to some international
locations. The manual and software are available
for download from www.slopeindicator.com
Dimensions (default):
The Hermes radio is a small form factor, lowpower, unlicensed ISM band radio transceiver
that delivers up to a 500 kbps data rate for distances up to several miles.
4-Channel V-Logger with Radio,
China .................................................52615148
8-Channel V-Logger with Radio,
China .................................................52615188
228.26 x 198.1 x 97.3mm (9.0 x 7.8 x 3.83 in.)
Measurement Range:
Reads vibrating wire sensors operating in the
range of 450-6000 Hz. Reads thermistors or RTDs
in the range of -20 to 120°C.
Logger Resolution:
0.001Hz for vibrating wire sensors
0.1°C for temperature sensors.
Straight Whip Dipole,
Mid-range (2.5 dBi) ............................59001004
± (0.002% of Reading + 0.04Hz) for vibrating
wire sensors
±0.5°C for temperature sensors
Right Angle Whip Dipole,
Mid-range (2.5 dBi) ............................59001005
Data Storage:
Lithium D-Cell Battery ........................52615122
Pole Attachment with 1" Pipe............52615130
Logger Settings:
Pole Attachment with 1.25" Pipe.......52615131
Date, time, memory mode, and communication
settings. Memory mode determines if logging
stops when memory is full or if logging continues
by overwriting earliest readings.
Pole Attachment with 1.5" Pipe.........52615132
Wall Mount ........................................52615135
V-LOGGER OPTIONS
Logger Schedule:
The following option can be added to a V-Logger.
Select the datalogger model as well as the
option model when ordering.
Logger start time can be set to a specific date
and time so that readings are synchronized with
other loggers. Reading intervals can be specified
by day, hour, minute, and second. Maximum
interval is 1 year. Minimum interval is 20 seconds
for the 4-channel logger and 30 seconds for the
8-channel logger.
Extra Capacity Battery:
The Extra Cap Battery option adds capacity for 3
additional lithium batteries for at least 10 years
of battery life (8 years with 8 channels) with
readings every 15 minutes in moderate temperatures or approximately 7 years battery life (4
years with 8 channels) in extreme cold weather.
Standard Articulating Dipole,
Mid-range (2.0 dBi) ............................59001001
Logger Accuracy:
Stores 63,648 records in secure, non-volatile
memory. Each record includes a VW reading and
temperature reading with time and date. When
memory is full, recording either stops or continues by overwriting previous readings, starting
with the oldest, depending on how the user set
up the logger during installation.
Hermes Wing (Base Station)
China .................................................59001400
Antennas:
The Hermes radio has been tested and approved
for use with the following antennas.
Manhole Lid Dome,
Short-range (2.5 dBi)..........................59001020
Omni-Directional Collinear,
Long-range (5.15 dBi) ........................56704838
Radio Specifications:
Transmit Power Output .................. 10 - 100mW
Receiver Sensitivity ............................ -107 dBm
RF Data Rate ........................................ 500kbps
Sensor settings:
For 4-Channel ....................................52615104
Sensor ID, serial number, calibration factors, and
sweep range for each sensor. Choice of thermistor or RTD for temperature channels.
For 8-Channel ....................................52615108
Power (default):
One lithium D-cell battery provides power for 9
years for the 4-channel logger (over 6 years for
the 8-channel logger) in moderate temperatures, assuming readings taken every hour on all
channels.
Weatherproofing:
V-Logger is housed in an IP68 enclosure with
cable glands for signal cable. Plugs are provided
for unused cable glands.
Durham
Geo West
Slope
Indicator,
12123
Harbour
Reach
Drive,
Mukilteo, WA, 98275 USA Web: www.slopeindicator.com
DGSI
East 2175
Park
Court, Stone
Mountain,
GA USA
30087
Tel: +1-770-465-7557
Tel: 425-493-6200
Tel:Reach
866-916-0541
Fax:WA,
425-493-6250
Email:
solutions@slope.com Email: solutions@slope.com
DGSI
West 12123 Harbour
Drive, Mukilteo,
USA 98275 Tel:
+1-425-493-6200
Made in USA. Copyright 12/2016 by Durham Geo-Enterprises. Products and specifications are subject to review and change without notice.